Anhangsserver-Netz zur Anzeige von Anhängen auf einer tragbaren elektronischen Vorrichtung

摘要

An attachment server network including at least two attachment servers in communication with one another, each of the attachment servers for converting email attachments (80) in response to view requests (66) received from portable electronic devices, each of the attachment servers having a respective cache for storing data corresponding to previously converted attachments, the data being available to any of the attachment servers in the attachment server network (74).